GCSE Mocs Physics (Motion)

Equation for speed

Distance/Time

What is a scalar quantity

Have size/magnitude and no direction

What is a vector quantity

Have both size/magnitude and direction

What is distance

How much ground a object has covered during its motion

What is displacment

How far out of place a object is; it is the objects overall change in position

What type of physical quantity is Distance

Scalar

What type of physical quantity is Displacement

Vector

What is a physical quantity

Any quantity that can be measured and tend to consist of a number and a unit.

Acceleration equation

Change in velocity/time

Velocity equation

Displacement/time

What is acceleration

The change of speed over a certain period of time

What is the physical quantity of Acceleration

Vector

Independent variable

The variable that changes

Dependant variable

The variable that you measure

Control variable

The variable that stays the same

Control variable of trolley PAG

The distance between light gates

Interdependent variable of trolley PAG

Hight of ramp

Dependant variable of trolley PAG

The mean acceleration of the trolley

What does a curve represent on a distance time graph

Accelaration

What does a flat line represent in a distance time graph

Stationary

What does a straight line at a angle represent in a distance time graph

Constant speed

What is a sketch graph

A graph with no scales, only necessary info

What is a tangent

A line that touches one part of the accelerating gradient

What does a straight angled line represent in a velocity time graph

Acceleration at a constant rate

What does a flat straight line represent in a velocity time graph

Constant velocity

What is the difference between distance time graphs and Velocity time graphs

Distance time graph tells us how much distance you have traveled while the velocity-time graph tells you your acceleration

Symbol for initial velocity

u

Symbol for final velocity

v

Symbol for acceleration

a

Symbol for displacement

s

Equation for kinetic energy

K.E = ½ mv²

Acceleration of gravity

9.8m/s²

What is precision

how close measurements of the same item are to each other

What is accuracy

how close a measurement is to the true or accepted value